@b_sherwood3 my 400AT used to do the same thing and I thought for sure it was electrical related.... But it ended up not being that...
When was the last time you really cleaned out your oil cooler? And how often does your fan come on? My oil cooler was completely plugged and the source of mine running too hot. It had never been in mud before so I figured no way it could be clogged. But just for dust and other riding debris over the years. Pressure washing it got rid of all my hot problems. And I run a manual fan switch cause if the oil temp sensor goes, the default failure mode of the sensor is to never turn the fan on. These 400AT's run hot cause they only hold 3 qts of oil and are air cooled and also use the oil for the hondamatic hydraulic pump and motor.
When was the last time you really cleaned out your oil cooler? And how often does your fan come on? My oil cooler was completely plugged and the source of mine running too hot. It had never been in mud before so I figured no way it could be clogged. But just for dust and other riding debris over the years. Pressure washing it got rid of all my hot problems. And I run a manual fan switch cause if the oil temp sensor goes, the default failure mode of the sensor is to never turn the fan on. These 400AT's run hot cause they only hold 3 qts of oil and are air cooled and also use the oil for the hondamatic hydraulic pump and motor.
